Flashmob plays Beethoven's Ninth in public square. So it's a commercial for a bank? So what?

Banco Sabadell, in the city of Sabadell in Catalonia, gives the background:

Published on May 31, 2012
https://www.bancsabadell.com. On the 130th anniversary of the founding of Banco Sabadell we wanted to pay homage to our city by means of the campaign "Som Sabadell" (We are Sabadell) . This is the flashmob that we arranged as a final culmination with the participation of 100 people from the Vallès Symphony Orchestra, the Lieder, Amics de l'Òpera and Coral Belles Arts choirs.

Some more commercials, promoting:

• Opera Company of Philadelphia at Macy's (formerly Wanamaker's) center city store.
• Copenhagen Phil (Sjællands Symfoniorkester) at København H (Københavns Hovedbanegård).
• AlphabetPhotography.com of Niagara Falls, Ont., at Seaway Mall, Welland, Ont.

The last performance, of the Hallelujah Chorus at an Ontario food court in 2010, has the best production values of the lot. "This flash mob was organized by http://www.AlphabetPhotography.com to wish everyone a very Merry Christmas!" says the YouTube blurb. "Special thanks to Robert Cooper and Chorus Niagara, The Welland Seaway Mall, and Fagan Media Group."

According to a Nov. 19, 2010, article in the Welland Tribune, "The seemingly spontaneous event actually took weeks to plan, said Jennifer Blakeley of Niagara Falls-based Alphabet Photography, who organized the event and recently posted the video to YouTube." Blakeley added, "The cafeteria chorus was part Alphabet advertisement, part performance art designed to put people in the Christmas spirit."

Alphabet Photography has another Christmas message at

http://www.youtube.com/watch?v=4AnMlQNw1M8

It's also a good example of what advertising creatives can do for their customers. A house ad, in other words.